The difference between benzodiazepine and diazepam? it's a urine test and have seen1-6 weeks and 7-10 days, took 2.5 mg 10days ago first time in 2 yrs

The general term: benzodiazepines refers to a class of medicines used to help with anxiety, sleep, and sometimes seizures. Diazepam is a particular drug in the class. While most of the members of the benzodiazepine class are gone from the body in a few days, the specific drug diazepam (also knwn as Valium in the US) hangs around much longer.

None: diazepam is a drug in the broad class of drugs called benzodiazepines

No difference: Diazepam is a specific example drug from the class of drugs known as Benzodiazepines. The rest of your statement does not form a question so I can't really decipher it well enough to know how to answer.

Up to 42 days...: Diazepam (Valium) is a long-acting drug in the benzodiazepine family. For urine testing, it can be detected for up to 42 days after last usage (depending on factors such as body mass, age, dose and frequency of usage). Here is a link for drug detection times (provided only for educational purposes).Please look under "Valium" for diazepam: http://alwaystestclean.com/atc/drug-detection-times-chart/.